First came the sound. And then tons of snow hit. And when it was over, people were still to figure out what had happened - for this was the first time in memory that an avalanche had hit the base camp of Everest. Saturday's avalanche - triggered by the devastating earthquake in Nepal - had all the elements of surprise, said NDTV producer Amir Peerzada, who was at the base camp to film the start of the climbing season. The team, which had been stranded after the tragedy, for over 48 hours, has just been evacuated to Kathmandu.